* {
	padding: 0;
	margin: 0;
}

canvas {
	margin: 10px;
	border: 2px solid #000;
}

#box {
	display: inline-block;
	position: absolute;
	margin-top: 200px;
	margin-left: 100px;
}

span {
	font: 24px "微软雅黑";
	display: inline-block;
	height: 50px;
}

input {
	margin-top: 30px;
	display: block;
	width: 100px;
	height: 50px;
	font: 16px "微软雅黑";
	color: #fff;
	background-color: #0099cc;
} 